JPH07123024B2 - Horizontal deflection yoke winding method and winding device - Google Patents

Description

The present invention relates to a deflection yoke winding method and a deflection yoke winding device mounted on a cathode ray tube.

[Conventional technology]

FIG. 15 shows a conventional horizontal deflection yoke. The horizontal deflection yoke 1 has an opening side arcuate portion _1a and a neck side arcuate portion _1b , and has a main twisted shape. Therefore, the winding can be performed in an accurate shape. It is not easy to hold the shape without distorting it.

Recently, the demand for large-screen CRTs with a size of 21 inches or more has increased and high image quality has been demanded, and a deflection yoke is wound around a bobbin as shown in FIG. The bobbin 2 is a trumpet-shaped tube as shown in the drawing, and the upper side of the figure is called the opening side and the lower side is called the neck side.

The opening side of the bobbin 2, the opening side circumferential groove for winding the opening side circular arc portion of the deflection yoke (FIG. 15 of the drawings reference number 1 _a)
2a is provided. This groove has two flanges 2 _b , 2 _c
The flange 2 _b is provided with a plurality of notches 2 _b-1 for allowing the wire to pass therethrough.

Also, on the neck side of this bobbin 2, there are two flanges.
A neck side circumferential groove 2 _d is formed by 2 _e and 2 _f , and the neck side arcuate portion of the deflection yoke (refer to the drawing reference number in FIG. 15).
1 _b ) is wound.

The wire is routed along the inner surface of the bobbin as shown by the arrow _a , enters the opening side circumferential groove 2 _a through the notch 2 _b-1 as shown by the arrow b,
It is wound as indicated by arrow c, enters the inside of bobbin 2 through notch 2 _b-1 as indicated by arrow d, is drawn along the inner surface of the bobbin as indicated by arrow e, and is notched 2 _{e-1 as} indicated by arrow f. through enters the neck side circumferential groove 2 in _d, wound on the premises as arrows g, is drawn through as notches 2 _e-1 of the arrow h to the inside of the bobbin, the winding repeated this It

[Problems to be Solved by the Invention]

As shown in FIG. 16, it is very troublesome to sequentially draw or wind the wire as shown by the arrows a, b to g, and if this is done manually, much time and labor are required.

For this reason, as shown in FIG. 17, a bobbin 2'having a structure in which the bobbin 2 is divided into two by a plane including the central axis Z is used, and the automatic winding configured to wind on the split bobbin. Devices are known.

However, when the split type bobbin 2'as shown in FIG. 17 is used, the rigidity of the bobbin is small, which causes torsional deformation, and the centering accuracy when integrally connecting two split bobbins. I have a problem.

In addition, it takes a lot of time to wire each divided bobbin and then combine and wire the bobbins.

The present invention has been made in view of the above-mentioned circumstances, and a horizontal deflection yoke is automatically wound with high efficiency by using an integral type bobbin (see Fig. 16) that is easy to post-process and has high rigidity. It is an object of the present invention to provide a method for obtaining the same and an apparatus suitable for carrying out the above winding method.

[Means for Solving the Problems]

The structure of the winding device according to the present invention created to achieve the above object will be described below with reference to FIG. 1 corresponding to the embodiment.

The bobbin 2 is supported, and an arc arrow θ is formed around the central axis Z.
The bobbin rotating means 3 for rotating as described above is provided.

A pair of nozzles that are driven in the Z-axis direction and in the Y-axis direction perpendicular to the Z-axis so that they are always located symmetrically with respect to the Z-axis.
Provide 4 _L and 4 _R.

The pair of nozzles are driven to rotate about z ₁ axis and z ₂ axis, which are parallel to the Z axis, as indicated by arc arrows θ _L and θ _R.

A pair of hook-shaped guide members 5 _L , 5 _R driven in the Z-axis direction and the Y-axis direction by hooking the wire rod fed from the nozzle is provided. This guide member 5 _L , 5 _R is θ
_Rotate like _l , θ _r to hook or release the wire.

The winding method of the present invention using the winding device having the above structure is performed as follows.

As described in FIG. 16, when the work of winding the horizontal deflection yoke on the bobbin 2 is classified, the work of winding the wire along the inner surface of the bobbin, the work of winding the wire in the opening side circumferential groove 2 _a . The work includes turning, winding the wire in the neck-side circumferential groove 2 _b , and drawing the wire between the circumferential grooves 2 _a and 2 _b .

The bobbin inner surface is wound by moving the nozzles 4 _L and 4 _R in the Z direction and the Y direction.

The tip portions of the nozzles 4 _L and 4 _R are moved to a position facing the opening side circumferential groove 2 _a and stopped, and the bobbin 2 is rotated around the Z axis. As a result, the wire is wound in the opening-side circumferential groove _2a .

Next, when the nozzles 4 _L and 4 _R are moved to be inserted into the bobbin 2 and penetrated, the tip end portion of the nozzle projects downward on the neck side of the bobbin 2.

Hook the wire rods (not shown) respectively fed from the downwardly projecting nozzles 5 _L , 5 _R with the guide hooks 5 _L , 5 _R , and these guide hooks 5 _L , 5 _R are attached to the neck side circumferential groove 2 _b. The bobbin 2 is rotated around the Z-axis so that the bobbin 2 faces the. Accordingly, the opening side circumferential groove 2 wire drawn from _a is wound around the neck side circumferential groove 2 _b. Then, the above operation is repeated.

[Work]

According to the above winding method, the wire rods are alternately wound around the opening-side circumferential groove and the neck-side circumferential groove of the integral bobbin 2, and the horizontal deflection yoke is automatically wound.

Since the above winding device is provided with a pair of nozzles, it is possible to simultaneously wind the deflection yokes having a symmetrical shape. Then, by rotating the bobbin with the pair of nozzles facing the opening-side circumferential groove of the bobbin, the winding can be performed in the opening-side circumferential groove.

Although it is structurally impossible to make the tip of the nozzle face the neck side circumferential groove, it is possible to hook the wire rod with the guide hook to guide the wire rod to the neck side circumferential groove, and in this state the bobbin When turned, it can be wound in the circumferential groove on the neck side.

When the wire rod is fed from the nozzle while alternately repeating the winding in the opening-side circumferential groove and the winding in the neck-side circumferential groove, the wire rod is discharged between the opening-side and neck-side circumferential grooves. The wire is routed. The wire rod in this portion is a slit which is a groove in the longitudinal direction provided on the inner peripheral surface of the bobbin 2 shown in FIG.
It is stored within 2s.

〔Example〕

FIG. 1 is a schematic sectional view showing one embodiment of a horizontal deflection yoke winding device according to the present invention.

The bobbin rotating means 3 has a structure in which the bobbin 2 is chucked and reciprocally rotated around the central axis Z thereof.

A pair of nozzles 4 _L and 4 _R are provided so as to be symmetrical with respect to the axis Z. These nozzles 4 _L and 4 _R are
The nozzles are held by nozzle holders 4 _L-1 and 4 _L-2 , respectively, and are vertically driven as indicated by reciprocating arrows z ₁ and z ₂ and horizontally driven as indicated by reciprocating arrow y.

The nozzles 4 _L and 4 _R are directed obliquely downward as shown in the drawing. Then, the nozzles 4 _L , 4 _R are respectively provided with axes z ₁ , so as not to apply an unreasonable force to the wire rod (not shown) that is fed out.
It is rotationally driven around z ₂ as indicated by reciprocating arc arrows θ _L and θ _R.

5 _L, 5 _R is a pair of guide hook, the nozzle 4 _L,
It is configured so that it can be hooked and released from a wire rod (not shown) that is fed from 4 _R and can be disengaged.

The pair of guide hooks 5 _L and 5 _R are also vertically driven as indicated by a reciprocating arrow z and horizontally driven as indicated by a reciprocating arrow y while maintaining symmetrical positions with respect to the central axis Z.

Next, with reference to FIG. 2 to FIG. 14 one by one, an example of carrying out the winding method of the present invention using the winding apparatus of the above-described embodiment (FIG. 1) will be described.

Reference numeral 2 shown in FIG. 2 is the bobbin described above, but the depth dimension of the slit 2s is enlarged to facilitate the reading.

As shown in FIG. 2, the pair of nozzles 6 _L and 6 _R are brought close to the Z axis, moved downward, and inserted into the bobbin 2. 6 _L and 6 _R are wire rods fed from the nozzles 4 _L and 4 _R , respectively, and the lower ends of these wire rods are temporarily chucked at points L and R, respectively.

As shown in FIG. 3, the pair of nozzles 4 _L and 4 _R are raised.
The wire rods 6 _L and 6 _R are drawn upward from the points L and R and pass through the bobbin 2.

As shown in FIG. 4, when the pair of nozzles 4 _L and 4 _R are opened to the left and right and the interval dimension l is made larger than the maximum diameter D of the bobbin 2, the wire rods 6 _L and 6 _R are slit respectively. It is stored within 2s.

As shown in FIG. 5, lower the pair of nozzles 4 _L and 4 _R slightly,
The circumferential groove 2 _a on the opening side is opposed to the circumferential groove 2 _a .

When the bobbin 2 is rotated about its center axis Z by about 1/8 in this state, the wire rods 6 _L and 6 _R are wound around the opening-side circumferential groove 2 _{a as shown} in FIG.

In the state of FIG. 6, 6 _R-1 shown in the right half of the figure is a portion in which the wire 6 _R is housed in the slit. Further, in the left half of the drawing, the wire rod housed in the slit does not appear in this cross section and is positioned on the front side of the paper surface. Virtual line
6 _L-1 shows a shape corresponding to a wire rod that is located on the front side of the paper surface and does not appear.

As shown in FIG. 6, when winding in the opening side circumferential groove _2a ,
As the wire 6 _L, 6 _R is not bent at an acute angle with the nozzle unit is rotated so that the orientation of the nozzle 4 _L, 4 _R is inwardly.

When the wire rods 6 _L and 6 _R have been wound into the opening-side circumferential groove 2 _a as described above, the pair of nozzles 4 _L and 4 _R are pulled up as shown in FIG. As shown in FIG. 5, the bobbin 2 is inserted into the bobbin 2 by moving it to the center and lowering it as shown in FIG.

As shown in FIG. 10, a guide hook 5 is provided for each of the wire rods 6 _L , 6 _R fed from a pair of nozzles 4 _L , 4 _R projecting to the neck side (downward in the figure) of the bobbin 2. _L ,
5 hook _R, as shown in FIG. 11 to open the guide hook 5 _L, 5 _R of the pair on the left and right, further slightly increased as shown in FIG. 12 is opposed to the neck side circumferential groove 2 _b .

In this state, rotate bobbin 2 about 1/8 of a turn. For details, turn in the opposite direction to the one in Figure 6. Since the wire is turned to the opposite side, the appearance of the wire in the slit is reversed from left to right in the figure.

As a result, the pair of wires 6 _L and 6 _R are wound around the neck side circumferential groove 2 _b as shown in FIG.

After finishing winding a wire on the neck side circumferential groove 2 in _b as above, remove the guide hook 5 _L, 5 _R from wire 6 _L, 6 _R.

FIG. 14 shows a state in which the guide hooks 5 _L and 5 _R are removed. In this state, the rotation angle position of the bobbin 2 and the nozzles 4 _L , 4
The position of _R is almost the same as the state shown in FIG. 2, and is in the state of being restored after one cycle of winding operation. Hereinafter, the above operation is repeated.

〔The invention's effect〕

As described above, according to the horizontal deflection yoke winding method of the present invention, the operation of inserting and withdrawing the pair of nozzles into the bobbin and the operation of separating and approaching the pair of nozzles. The horizontal deflection yoke can be wound around the integral bobbin by the operation, the operation of rotating the bobbin around the central axis, and the operation of moving the pair of guide hooks. Since an integral type bobbin can be used, unlike the split type bobbin, there is no need to combine and connect the bobbins after winding, and since it is an integral type, the bobbin has a large rigidity and the horizontal deflection yoke is accurate. It is easy to wind in any shape and to keep the wound horizontal deflection yoke in a precise shape.

Further, the winding device for the horizontal yoke according to the present invention supports the bobbin and rotates the bobbin around the central axis Z thereof, and the bobbin rotating means which is symmetrical with respect to the axis Z and maintains the symmetrical position. A pair of nozzles that are moved, a driving unit that reciprocates the nozzle in the axis Z direction, a driving unit that reciprocates the nozzle in the axis Y direction orthogonal to the axis Z, and the nozzle and the axis Z. Driving means for rotating about parallel axes, a pair of hook-shaped guide members having a structure that can be engaged with and disengaged from the wire rod fed from the nozzle, the hook-shaped guide members in the Y-axis direction, and the shaft. Since the driving means for moving in the Z direction is provided, the working mechanism necessary for carrying out the winding method according to the above-mentioned invention method is provided, and the invention method can be easily carried out. it can.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing one embodiment of a winding device for a horizontal deflection yoke according to the present invention. 2 to 14 are schematic process drawings for explaining the operation of the apparatus according to the above embodiment. FIG. 15 is a perspective view of a conventional horizontal deflection yoke, and FIG. 16 is a perspective view showing an example of a one-body bobbin for the horizontal deflection yoke.
FIG. 17 is a perspective view of a split type bobbin. 1 ... Horizontal deflection yoke, 2 ... Bobbin, _2a ... Opening side circumferential groove, _2b , _2c ... Flange, _2b-1 ... Notch, _2d ... Neck side circumferential groove, 2 _e , 2 _f …… Flange, 2 _e-1 …… Notch, 2 s…
... slits, 3 ... bobbin rotating means, 4 _L , 4 _R ... nozzles, 5
_L , 5 _R …… Guide hook, 6 _L , 6 _R …… Wire material.

Claims (2)

[Claims] 1. An integrated type having an opening-side circumferential groove for winding an opening-side arcuate portion of a horizontal deflection yoke and a neck-side circumferential groove for winding a neck-side arcuate portion of the horizontal deflection yoke. In a method of winding a horizontal deflection yoke on a bobbin, a pair of nozzles is inserted from the opening side of the bobbin and inserted into the bobbin, and a wire rod is fed out from each of the pair of nozzles to open the pair of nozzles. Side of the bobbin, the pair of nozzles are moved toward the outer peripheral side of the bobbin in a direction in which they are separated from each other, and the pair of nozzles are moved in the neck side direction of the bobbin so that the tips of the pair of nozzles are removed. While facing the opening side circumferential groove, while feeding the wire rod from each of the pair of nozzles,
The bobbin is rotated around its central axis to wind the wire around the opening-side circumferential groove, and the pair of nozzles are moved in the bobbin opening-side direction to move the pair of nozzles into the central axis of the bobbin. Move them close to each other to bring them close to each other, and while letting out the wire rod from each of the pair of nozzles, insert the pair of nozzles into the bobbin from the opening side of the bobbin, and let the tip end project from the neck side of the bobbin. Hooking each of the wire rods fed from a pair of nozzles protruding from the bobbin with a pair of hook-shaped guide members, and moving the hook-shaped guide members to a position facing the neck side circumferential groove, While rotating the bobbin around its central axis while feeding the wire rod from each of the pair of nozzles, the wire rod is wound around the neck side circumferential groove, and the hook-shaped guide member is attached to the neck side circumferential groove. The method for winding a horizontal deflection yoke is characterized in that the horizontal deflection yoke is moved to a position near the central axis on the neck side and separated from the wire rod, and the above-described operation is repeated. 2. An integrated system having an opening-side circumferential groove for winding the opening-side arcuate portion of the horizontal deflection yoke and a neck-side circumferential groove for winding the neck-side arcuate portion of the horizontal deflection yoke. A device for winding a horizontal deflection yoke on a bobbin, the bobbin rotating means supporting the bobbin and rotating the bobbin around its central axis Z, and the bobbin rotating means arranged symmetrically with respect to the axis Z and having a symmetric relationship. A pair of nozzles that can be kept and moved; drive means for reciprocating the nozzle in the axis Z direction; drive means for reciprocating the nozzle in the axis Y direction orthogonal to the axis Z; Drive means for rotating around an axis parallel to Z, a pair of hook-shaped guide members having a structure that can be engaged with and disengaged from the wire rod fed from the nozzle, and the hook-shaped guide member in the axis Y direction, and Drive means for moving in the axis Z direction, A winding device for a horizontal deflection yoke, comprising: